Eads, Daniel D. ; Periasamy, N. ; Fleming, Graham R. (1989) Diffusion influenced reactions at short times: breakdown of the Debye-Smoluchowski description Journal of Chemical Physics, 90 (7). pp. 3876-3879. ISSN 0021-9606
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Official URL: http://jcp.aip.org/resource/1/jcpsa6/v90/i7/p3876_...
Related URL: http://dx.doi.org/10.1063/1.455794
Abstract
Fluorescence quenching studies were used to explore the validity of the Debye-Smoluchowski equation on the 0.5-200 ps time scale, using fluorescence upconversion. Complementary studies extending to 3.5 ns were carried out using time correlated single photon counting. We find, for the system rhodamine B quenched by ferrocyanide, that the fluorescence decay (i. e., reaction rate) is much faster at short times than implied by fits to the lower time resolution data. Possible reasons for the breakdown of the Debye-Smoluchowski equation at short times are briefly discussed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Diffusion; Chemical Reactions; Fluorescence; Smoluchowski Equation; Ps Range; Rhodamines; Radiationless Decay; Ferricyanides |
| ID Code: | 81708 |
| Deposited On: | 07 Feb 2012 11:04 |
| Last Modified: | 07 Feb 2012 11:04 |
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